case-death ratio 疾病死亡比率 ; 致死率 ; 病例死亡率
fetal death ratio 胎儿死亡比
cause-specific death ratio 原因别死亡比 ; 分死因死亡比
Neonatal Death Ratio 新生儿死亡比
late foetal death ratio 临产死胎比率
cell death ratio 细胞死亡率
birth- death ratio 生死比率
death-ratio is low 死亡率较低
National Population Birth-death Ratio 全国人口出生率死亡率
Total cancer death ratio and lung cancer death ratio have a tendency of going up with the increase of service age.
全癌、肺癌死亡率呈现出随工龄的增长，死亡率有增高的趋势。
Re-census data, follow-up visits at 12 months of age and the ratio of stillbirths to neonatal deaths suggested that death registration by the DSS was nearly complete.
据重新普查数据、12个月大幼儿的随访情况以及新生儿死亡人数中的死产率显示，人口监测系统已基本完成了所有的死亡人数登记。
The mean age at death was 70 years and the male-to-female ratio was 3.6:1.
死亡的平均年龄是70岁，男女比例为3.6：1。
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